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DFO Science Identifies Little Change with Northern Shrimp Biomass 

March 20, 2024

Today’s stock assessment update from the Department of Fisheries and Oceans Science Department notified industry that the biomass for northern shrimp in area 6 has not changed between 2021 and 2023. The stock remains in the critical zone, however that reference point is based on a period when there were few predators in the area. 

For years the FFAW has argued that a Limit Reference Point for northern shrimp in SFA 6 should include consideration of shrimp biomass levels from the 1980s. FFAW continues to advocate for the inclusion of information from before the collapse of cod and before the explosion in shrimp biomass in the estimation of reference points for SFA6 shrimp.    

While it is difficult to estimate the relative biomass levels in the 1980s, it is clear that there were considerably fewer shrimp in the system prior to the reference period for this stock.  Data from catch rates, limited surveys, and predator stomach contents all clearly show that shrimp biomass levels increased from low levels in the 1980s. The upcoming framework assessment for northern shrimp should address and – ideally – resolve this issue.  

Dr. Erin Carruthers

Dr. Erin Carruthers is the Science Director and Senior Fisheries Scientist with the Fish, Food and Allied Workers Union (FFAW-Unifor), which is the labour union that represents the owner-operator fleet in Newfoundland and Labrador. The FFAW is committed to research and management that supports healthy oceans, fisheries, and coastal communities. Dr. Carruthers received her Ph. D. in Biology from Memorial University in 2011 followed by a postdoctoral fellowship with the Centre for Fisheries Ecosystems Research. Before coming to Newfoundland, Erin worked as a Research Biologist with Fisheries and Oceans Canada at the St. Andrews Biological Station. Her current research program is co-constructed with fish harvesters and includes research on coastal fishing communities, collaborative longline and trap surveys, and best practices for the avoidance, handling and release of unwanted catch.